Oil-filter



(No Model E. A. FIELD. OIL FILTER.

N0. 554,815. Patented Feb. 18, 1896.

UNITED STATES PATENT OFFICE.

EDWARD A. FIELD, OF CHICAGO, ILLINOIS.

OIL-FILTER.

SPECIFICATION forming part of Letters Iatent No. 554,815, dated February 18, 1896.

4 Application filed June l7, 1895. Serial No. 553,054. (No model.)

To aZZ whom it may concern.- I

Be it known that I, EDWARD A. FIELD, a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements-in Oil-Filters, of which the following, When taken in connection with the drawings accompanying and forming a part hereof, is a full and complete description, sufficient to enable those skilled in the art to understand, make, and use the same.

This invention relates to oil filters into which oil that has been used as a lubricant and contains dirt is poured and through which such oil extends for the purpose of filtering it, thereby separating the oil and the dirt, so thatthe oil can be again used; and the object of this invention is to obtain an oil-filter which will be certain in operation, simple and cheap in construction, and easy to keep in operative condition.

In the drawings referred to as forming a part of this specification, Figure 1 is a side elevation of an oil-filter embodying the invention, and Fig. 2 a vertical sectional view thereof.

A reference-letter applied to a given part is used to designate such part throughout both figures of the drawings.

A is a cylindrical receptacle, a being the top thereof and a the bottom.

B is an opening through top a, and b is a cover to such opening. Opening Bis used for the purpose of cleaning out receptacle A when required.

0 is a discharge-pipe to receptacle A, having therein valve 0.

D is a steam or hot-water coil in receptacle A, by which the temperature of contents of such receptacle is controlled. d d are valves in pipe 01, (such pipe cl forming the coil D,) by means of which steam or hot water is admitted to and allowed to flow from the coil D.

E is a receptacle in receptacle A for receiving oil to be filtered. Receptacle E is placed immediately below an opening in cover a, and e is the cover to such opening and to receptacle E.

F is a sieve in receptacle E.

G is a pipe extending from the bottom of receptacle E downward in receptacle A and to below disks H, I, J, and K.

'tially the height of water-line W.

H J are disks secured to pipe G. Disks H J are of less diameter than receptacle A and flare downward and outward, forming pockets 0 O, in which (when water to water-line W is contained in receptacle A) oil is held. Disks I K are of the same diameter as receptacle A, being secured to the cylindrical wall thereof and having central openings 'i therein, respectively. Disks I K flare downward and inward toward the openings 2' is, forming pockets 0 O for oil.

W is water in receptacle A, extending from bottom a to water-line W, or substantially so.

L is a discharge-cock for oil in receptacle A.

M is an oil-gage indicating the height of oil in receptacle A.

The operation of the filter is as follows WVater W is poured into receptacle A to substan- Steam or hot water is admitted to coil D and water W is warmed thereby. Oil is poured into receptacle E, (through sieve F,) and such oil extends down in the pipe Gto the pocket 0 underneath disk H. The oil will accumulate in this pocket until it becomes full, (floating on the Water,) and when such pocket is full the oil will escape from the pocket, as at O 0, from underneath the edge of disk H and will rise in the water to pocket 0 underneath disk I. When this pocket is full the oil will pass underneath the edge of disk I and pass up into pocket 0 underneath disk J, and when such pocket is full the oil will pass underneath the edge of disk J and up into the pocket 0 underneath disk K. From the last-named pocket (when full) the oil passes underneath the edge of disk K to the top of the water WV, (above water-line WVQ) and from there can be drawn off through cock L.

In passing through the water W and the several pockets, as described, the dirt in the oil will separate therefrom and drop to the bottom of receptacle A, from which it can be drawn through discharge-pipe O by opening valve 0. When necessary to further clean the receptacle A the oil and water therein are drawn off, cover I) removed and the receptacle cleaned.

Having thus described my invention and its manner of operation, what I claim as new, and desire to secure by Letters Patent, is

1. An oil-filter consisting of areceptacle, a

smaller receptacle contained in the firstnamed receptacle near the upper end thereof, a passage-way from the bottom of the smaller receptacle to near the bottom of the larger one, flaring disks secured in position forming oil-pockets one above the other, so that oil from one pocket will pass upward into the next higher pocket, liquid contained in the larger receptacle to above the upper one of the pockets, and means for controlling the temperature of the contents of the larger receptacle; substantially as described.

2. An oil-filter consisting" of awater-reoeptacle a smaller oil-receptacle within the waterreceptacle, a sieve above the oil-receptacle, a passage-way for oil from the oil-receptacle to near the bottom of the water-receptacle,downmtrdly-fiaring disks alternately secured to the walls of the passage-way and of the waterreceptacle, the disks secured to the walls of the passage-way of less diameter than the diameter of the water-receptacle, and the disks secured to the water-receptacle having a central opening of larger diameter than the walls of the oil passage-way, and all of such disks below the level of the water in the water receptacle, whereby oil-pockets are formed into which oil flows after passing through a body of water, means for drawing off the oil on the top of the water in the water-receptacle, and means for controlling the temperature of the water: substantially as described.

3. In an oil-filter, the combination of a water-receptacle, an oil-receptacle therein a sieve over the oil-receptacle, a pipe G extending from the oil-receptacle downwardly to near the bottom of the water-receptacle,downwardlyflaring disks II, I, form ing oil-pockcts, coil D, stop-cooks O and L, and opening 13 having cover I); substantially as described.

. EDXVARD A. FlFLl).

In presence of-- FRANK SAYRTJ OsBonN, L. BALLARD WAPLEs. 

